LOS ANGELES, May 15 (Xinhua) -- Denver International Airport, one of the world's busiest airports, is investigated by U.S. aviation safety regulators for a communications outage early this week in ...

最佳的机场代码是机场所在地地名的前3个字母，这样乘客看到3个字母就可以与它的地理概念联系起来，清晰又直接。比如北京首都PEK (北京英文旧称 PEKing)、上海虹桥SHA (SHAnghai)、广州白云 CAN (广州英文旧称CANton)。